2015 Renault G — MOT failures & pass rate
Across 716 MOT tests, the 2015 Renault G recorded a 75.4% pass rate. Against all cars of a similar age (16.2% fail rate), the 2015 G comes out 8.4pp worse. Failures cluster in lighting & signalling, suspension and body, structure & corrosion.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 14.7% of tests against 9.2% for the next-worst category.
At component level the recurring items are stop lamp, joints and tread depth — stop lamp alone was recorded 67 times.
Condition tracks the odometer closely. Failures run at 25.8% in the 0-30k band and 32.5% in the 120-150k band, a 6.7-point spread.
Tyres is the most common advisory, noted on 33.0% of tests — work that passed today but is likely due soon.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 14.7% | 105 |
| 2 | Suspension | 9.2% | 66 |
| 3 | Body, structure & corrosion | 7.7% | 55 |
| 4 | Tyres | 6.4% | 46 |
| 5 | Visibility | 5.0% | 36 |
| 6 | Brakes | 4.9% | 35 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Stop lamp | 67 |
| 2 | Joints | 59 |
| 3 | Tread depth | 40 |
| 4 | Wipers | 38 |
| 5 | Brake pads | 30 |
| 6 | Coil spring | 29 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 33.0% | 236 |
| 2 | Brakes | 31.3% | 224 |
| 3 | Suspension | 12.4% | 89 |
| 4 | Other defects | 10.2% | 73 |
| 5 | Lighting & signalling | 8.8% | 63 |
| 6 | Visibility | 4.3% | 31 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 31 | 25.8% |
| 30-60k | 197 | 20.3% |
| 60-90k | 277 | 23.5% |
| 90-120k | 155 | 29.0% |
| 120-150k | 40 | 32.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 159 | 23.9% |
| 2022 | 151 | 21.2% |
| 2023 | 147 | 23.1% |
| 2024 | 136 | 30.1% |
| 2025 | 123 | 25.2% |
What to check before buying a 2015 G
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 14.7% of tests. Start there.
- Lighting & signalling (14.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (9.2% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Body, structure & corrosion (7.7% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2015 Renault Gs pass their MOT?
75.4% of the 716 2015 Renault G MOT tests in this dataset passed — a 24.6% fail rate.
What is the most common MOT failure on a 2015 Renault G?
Lighting & signalling, recorded in 14.7% of tests, followed by suspension (9.2%).
Does the 2015 G get worse with mileage?
Its MOT fail rate rises from 25.8% in the 0-30k band to 32.5% in the 120-150k band.
Methodology & source. Based on 716 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.